I am an opera student and suffer from terror before I have to sing for my professors. My doctor prescribed me 40mg in the morning and 40mg 2 hours before I perform. I started taking it today and when it came close to my turn to sing, I almost started crying from the terror that I was feeling. The drug did nothing for me. Should I up my dosage or change when I take it? Fortunately, we were out of time before it was turn to sing. But, I will be first to sing at our next class. Help!